1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
|
#!/usr/bin/env python3
# -*- coding: utf-8 -*-
#
# NOTE:
# * SimbadClass
# https://astroquery.readthedocs.org/en/latest/api/astroquery.simbad.SimbadClass.html
# * All available VOTable fields:
# http://simbad.u-strasbg.fr/simbad/sim-help?Page=sim-fscript#VotableFields
#
# ChangeLog:
# 2016-01-14:
# * Add 'z_value'
#
# TODO:
# * allow to query by coordinates & radius range
# * filter queryed results according to the type/other...
# * if not queryed by name, then try query by coordinates
#
"""
Query SIMBAD with the provided name or coordinate.
http://simbad.u-strasbg.fr/simbad/
"""
__version__ = "0.1.1"
__date__ = "2016-01-14"
import sys
import argparse
import csv
from astroquery.simbad import Simbad
from astropy import coordinates
import astropy.units as u
## Simbad configurations
Simbad.ROW_LIMIT = 30
Simbad.TIMEOUT = 20
## Add query items/fields
# otype: standard name of the object type
# rv_value: Radial velocity value. Eventually translated from a redshift
# z_value: Redshift value. Eventually translated from a radial velocity
# rvz_qual: Quality code (A: best, .., E: worst)
# rvz_type: stored type of velocity: 'v'=radial velocity, 'z'=redshift
Simbad.reset_votable_fields()
Simbad.add_votable_fields('otype', 'rv_value', 'z_value', 'rvz_qual', 'rvz_type')
def query_name(name, verbose=False):
"""
Query SIMBAD by name.
"""
q = Simbad.query_object(name)
try:
main_id = str(q['MAIN_ID'][0], encoding='utf-8')
otype = str(q['OTYPE'][0], encoding='utf-8')
rv = q['RV_VALUE'][0]
z = q['Z_VALUE'][0]
rvz_qual = q['RVZ_QUAL'][0]
rvz_type = q['RVZ_TYPE'][0]
if verbose:
print('%s: %s,%s,%s,%s,%s,%s' % (name, main_id, otype, rv, z,
rvz_qual, rvz_type))
except (TypeError, KeyError) as e:
main_id = ''
otype = ''
rv = ''
z = ''
rvz_qual = ''
rvz_type = ''
if verbose:
print('*** %s: not found ***' % name, file=sys.stderr)
#
results = {
'main_id': main_id,
'otype': otype,
'rv': rv,
'z': z,
'rvz_qual': rvz_qual,
'rvz_type': rvz_type,
}
return results
def main():
parser = argparse.ArgumentParser(
description="Query SIMBAD ...")
parser.add_argument("-V", "--version", action="version",
version="%(prog)s " + "%s (%s)" % (__version__, __date__))
parser.add_argument("infile",
help="file contains list of names; one per line")
parser.add_argument("outfile",
help="output with queryed data, empty if not found; CSV format")
parser.add_argument("-v", "--verbose", dest="verbose",
action="store_true", help="show verbose information")
args = parser.parse_args()
name_list = []
main_id_list = []
otype_list = []
rv_list = []
z_list = []
rvz_qual_list = []
rvz_type_list = []
with open(args.infile) as f:
for name in f:
name = str.strip(name)
name_list.append(name)
qr = query_name(name, verbose=args.verbose)
main_id_list.append(qr['main_id'])
otype_list.append(qr['otype'])
rv_list.append(qr['rv'])
z_list.append(qr['z'])
rvz_qual_list.append(qr['rvz_qual'])
rvz_type_list.append(qr['rvz_type'])
with open(args.outfile, 'w') as of:
writer = csv.writer(of)
writer.writerow([ "Name", "SIMBAD_ID", "Type",
"RV", "z", "RV/z_Quality", "RV/z_Type" ])
for i in range(len(name_list)):
writer.writerow([ name_list[i],
main_id_list[i],
otype_list[i],
rv_list[i],
z_list[i],
rvz_qual_list[i],
rvz_type_list[i] ])
if __name__ == "__main__":
main()
# vim: set ts=4 sw=4 tw=0 fenc=utf-8 ft=python: #
|
